Things I'm worried about for tomorrow.

I've got a job fair tomorrow that will hopefully help me to find a specific school I'll be at.
Here is a list of things I'm worried about:
1. What to wear- seems dumb, but I've been to job fairs in Illinois and I know what to wear there; what do I wear out here during the summer?
2. How to find out about specific schools- I wish I could walk into an interview that I knew I was walking into. Instead I have no idea about what schools will be there. Not even a clue. I've done research on a lot of schools, but there is no way to research as many high schools and middle schools that may be there.
3. Did I bring the right stuff? I have over 30 copies of my resume and 10 copies of some letters of recommendation. Is that the right stuff? I'd feel a lot more comfortable with this if I were in Illinois I think since I know the Illinois standards (but then again would I take anything else if I were interviewing in Illinois?)
um.... so we'll see...